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rtc: ds1307: switch to rtc_register_device

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This removes a possible race condition and crash and allows for further
improvement of the driver.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Alexandre Belloni 2017-07-06 11:42:06 +02:00
parent 2a52482ffb
commit 69b119a642
1 changed files with 7 additions and 2 deletions

9
drivers/rtc/rtc-ds1307.c
View file

@ -1674,8 +1674,8 @@ read_rtc:
device_set_wakeup_capable(ds1307->dev, true);
set_bit(HAS_ALARM, &ds1307->flags);
}
ds1307->rtc = devm_rtc_device_register(ds1307->dev, ds1307->name,
rtc_ops, THIS_MODULE);
ds1307->rtc = devm_rtc_allocate_device(ds1307->dev);
if (IS_ERR(ds1307->rtc)) {
return PTR_ERR(ds1307->rtc);
}
@ -1737,6 +1737,11 @@ read_rtc:
}
}
ds1307->rtc->ops = rtc_ops;
err = rtc_register_device(ds1307->rtc);
if (err)
return err;
ds1307_hwmon_register(ds1307);
ds1307_clks_register(ds1307);